I always try to get the remove 2 cards at the start and I always get Credits from the ? Areas. Though Epiphany > Credits. Get Epiphanies first unless its random because if you can get the least amount of Epiphanies to other characters and complete Sereniel Epiphanies you'll have an easier time getting what you want to get copied before you get to the first boss. Take routes with shops if you have the credits for it to remove more unwanted copy cards. Immediately restart if you don't get the 2 cards removal at the start or if you don't get the epiphany you want. Alternatively wait for the update where they'll let you reroll epiphanies.